The shady understory of the Ecuadorian rainforest hosts a great diversity of butterflies that are adapted specifically for this dimly lit ecosystem. Although we often rank butterflies on how gaudy and beautiful their wings patterns are, among the most remarkable of the understory are those that bear transparent wings, such as this Glasswing Butterfly (Dulcedo polita). When perched under the right conditions they can appear almost invisible. Canandé Reserve, Ecuador.